1
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.25
Four equal charges of value + Q are placed at any four vertices of a regular hexagon of side 'a'. By suitably choosing the vertices, what can be maximum possible magnitude of electric field at the centre of the hexagon?
2
WB JEE 2018
MCQ (Single Correct Answer)
+2
-0.5
The bob of a pendulum of mass m, suspended by an inextensible string of length L as shown in the figure carries a small charge q. An infinite horizontal plane conductor with uniform surface charge density $$\sigma$$ is placed below it. What will be the time period of the pendulum for small amplitude oscillations?
3
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
A positive charge Q is situated at the centre of a cube. The electric flux through any face of the cube is (in SI units)
4
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
A charge of 0.8 coulomb is divided into two charges Q1 and Q2. These are kept at a separation of 30 cm. The force on Q1 is maximum when
Questions Asked from Electrostatics (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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